<!-- 解析glft -->

<template>
  <div class="container">
    <div id="container"></div>
  </div>
</template>

<script>
import * as THREE from "three";
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";
import { GLTFLoader } from "three/examples/jsm/loaders/GLTFLoader.js";
import { DRACOLoader } from "three/examples/jsm/loaders/DRACOLoader";
import { AjaxCommon } from "@/libs/apiCommon";
import { fileAddress } from "@/libs/apiCommon";
export default {
  props: ["curItem"],
  data() {
    return {
      publicPath: fileAddress + "\\",
      finallyPath: "",
      mesh: null,
      camera: null,
      scene: null,
      renderer: null,
      controls: null,
    };
  },
  mounted() {
    this.$nextTick(() => {
      this.init();
    });
  },
  methods: {
    async getSource() {
      let finallyPath = "";
      let self = this;
      if (this.curItem && this.curItem.Id) {
        // var url = "RfaResouces\\test123\\test123.gltf";
        // var url = "RfaResouces\\test123\\NewProject.gltf";
        // finallyPath = self.publicPath + url;

        var res = await AjaxCommon(
          `/api/familyresouce/getgltf/${this.curItem.Id}`,
          "post",
          {}
        );
        if (res.data.status == 200) {
          // 改成将文件下载到public文件夹下
          let strList = res.data.response;
          var url = strList[0];
          // "RfaResouces\\8ac22c8f-2e99-4ed5-8661-b66222fad691\\8ac22c8f-2e99-4ed5-8661-b66222fad691.gltf",
          // "RfaResouces\\8ac22c8f-2e99-4ed5-8661-b66222fad691\\8ac22c8f-2e99-4ed5-8661-b66222fad691.bin"
          finallyPath = self.publicPath + url;
          console.log(res, finallyPath, "res123.....");
        }
      }
      this.finallyPath = finallyPath;
      return finallyPath;
    },
    async initResource() {
      await this.getSource();
      if (this.finallyPath == "") {
        document.getElementById("container").innerHTML = "暂无3D";
        return;
      }
      this.createScene(); // 创建场景
      this.loadGLTF(); // 加载GLTF模型
      this.createLight(); // 创建光源
      this.createCamera(); // 创建相机
      this.createRender(); // 创建渲染器
      this.createControls(); // 创建控件对象
      this.render(); // 渲染
    },
    // 初始化
    init() {
      this.initResource();
    },
    // 创建场景
    createScene() {
      this.scene = new THREE.Scene();
    },
    // 加载GLTF模型
    loadGLTF() {
      //   const THIS = this
      const loader = new GLTFLoader();
      // /threeDFile/NewProject.gltf
      // `${THIS.publicPath}public/threeDFile/NewProject.gltf`
      const dracoLoader = new DRACOLoader();
      dracoLoader.setDecoderPath("/draco/gltf/"); //模型解压文件
      loader.setDRACOLoader(dracoLoader);
      var path = this.finallyPath;
      console.log(path, "path......");
      loader.load(path, (model) => {
        console.log(model, "model........................");
        // model.scene.children[0].scale.set(50, 50, 50);
        this.scene.add(model.scene.children[0]);
      });
      // loader.load(`/threeDFile/NewProject.gltf`, (model) => {
      //   console.log(model, "model........................");
      //   // model.scene.children[0].scale.set(50, 50, 50);
      //   this.scene.add(model.scene.children[0]);
      // });
    },

    // 创建光源
    createLight() {
      // 环境光
      const ambientLight = new THREE.AmbientLight(0xffffff, 0.1); // 创建环境光
      this.scene.add(ambientLight); // 将环境光添加到场景

      const spotLight = new THREE.SpotLight(0xffffff); // 创建聚光灯
      spotLight.position.set(150, 150, 150);
      spotLight.castShadow = true;
      this.scene.add(spotLight);
    },
    // 创建相机
    createCamera() {
      const element = document.getElementById("container");
      const width = 660; // 窗口宽度
      const height = 500; // 窗口高度
      console.log(width, height, element, "size......");
      const k = width / height; // 窗口宽高比
      console.log(k, "size1......");
      // PerspectiveCamera( fov, aspect, near, far )
      this.camera = new THREE.PerspectiveCamera(35, k, 0.1, 1000);
      this.camera.position.set(150, 150, 150); // 设置相机位置

      this.camera.lookAt(new THREE.Vector3(10, 40, 0)); // 设置相机方向
      this.scene.add(this.camera);
    },
    // 创建渲染器
    createRender() {
      const element = document.getElementById("container");
      this.renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true });
      this.renderer.setSize(660, 500); // 设置渲染区域尺寸
      this.renderer.shadowMap.enabled = true; // 显示阴影
      this.renderer.shadowMap.type = THREE.PCFSoftShadowMap;
      // this.renderer.setClearColor(0x3f3f3f, 1); // 设置背景颜色  (放开会有一个黑色的玩意遮盖)
      element.appendChild(this.renderer.domElement);
    },

    render() {
      if (this.mesh) {
        this.mesh.rotation.z += 0.006;
      }
      this.renderer.render(this.scene, this.camera);
      requestAnimationFrame(this.render);
    },
    // 创建控件对象
    createControls() {
      this.controls = new OrbitControls(this.camera, this.renderer.domElement);
    },
  },
};
</script>
<style scoped>
#container,
.container {
  width: 660px;
  height: 500px;
}
</style>

